Lewiston August 21 Weather Records

Daily averages and all-time records for weather in Lewiston, Idaho for the date of August 21.
August 21 All-Time Records
1894–2024
Highest temperature 110 °F 1897
Lowest temperature 45 °F 1945
Lowest daily high 66 °F 2002
Highest daily low 71 °F 2022
Most precipitation 0.18 inches 2023
Most snow none -
August 21 Average Weather
1991–2020 1
Average high 88.3 °F
Average low 58.8 °F
Chance precipitation 10.6%
Chance snow 0%
Lewiston August 21 Weather by Year
Year High (°F) Low (°F) Precip. (inches) Snow (inches)
2023 78 67 0.18 0.0
2022 100 71 0.00 0.0
2021 70 59 0.03 0.0
2020 94 62 0.00 0.0
2019 94 66 0.05 0.0
2018 86 55 0.00 0.0
2017 91 56 0.00 0.0
2016 99 59 0.00 0.0
2015 81 61 0.00 0.0
2014 88 59 0.00 0.0
2013 94 56 0.00 0.0
2012 94 67 0.00 0.0
2011 96 59 0.00 0.0
2010 88 55 0.00 0.0
2009 94 71 0.00 0.0
2008 74 57 0.00 0.0
2007 80 57 0.00 0.0
2006 101 63 0.00 0.0
2005 104 64 0.00 n/a
2004 94 66 0.00 n/a
2003 92 58 0.00 n/a
2002 66 51 0.12 n/a
2001 85 52 0.00 n/a
2000 82 48 0.00 n/a
1999 87 65 0.00 n/a
1998 90 60 0.00 n/a
1997 93 59 0.00 n/a
1996 82 49 0.00 n/a
1995 94 59 0.00 0.0
1994 82 60 0.00 0.0
1993 82 62 0.00 0.0
1992 86 59 0.07 0.0
1991 96 62 0.00 0.0
1990 78 62 0.12 0.0
1989 84 63 0.01 0.0
1988 83 50 0.00 0.0
1987 86 50 0.00 0.0
1986 89 69 0.00 0.0
1985 75 49 0.00 0.0
1984 97 54 0.00 0.0
1983 89 55 0.00 0.0
1982 100 65 0.00 0.0
1981 87 53 0.00 0.0
1980 85 48 0.00 0.0
1979 87 60 0.02 0.0
1978 77 56 0.18 0.0
1977 93 68 0.00 0.0
1976 90 55 0.00 0.0
1975 88 58 0.00 0.0
1974 85 53 0.00 0.0
1973 93 57 0.00 0.0
1972 91 59 0.00 0.0
1971 90 61 0.00 0.0
1970 94 53 0.00 0.0
1969 93 59 0.00 0.0
1968 71 54 0.00 0.0
1967 89 64 0.00 0.0
1966 89 54 0.00 0.0
1965 81 58 0.00 0.0
1964 88 53 0.00 0.0
1963 81 53 0.00 0.0
1962 84 63 0.00 0.0
1961 98 66 0.00 0.0
1960 75 47 0.00 0.0
1959 74 54 0.06 0.0
1958 98 61 0.00 0.0
1957 88 51 0.00 0.0
1956 98 58 0.00 0.0
1955 90 48 0.00 0.0
1954 73 53 0.15 0.0
1953 81 61 0.00 0.0
1952 92 50 0.00 0.0
1951 98 57 0.00 0.0
1950 99 62 0.00 0.0
1949 85 58 0.00 0.0
1948 79 52 0.00 0.0
1947 79 51 0.00 0.0
1946 107 60 0.00 0.0
1945 99 45 0.00 0.0
1944 93 49 0.00 0.0
1943 87 54 0.00 0.0
1942 95 69 0.00 0.0
1941 94 62 0.00 0.0
1940 101 65 0.00 0.0
1939 102 55 0.00 n/a
1938 92 51 0.00 n/a
1937 98 55 0.00 n/a
1936 96 57 0.00 n/a
1935 94 50 0.00 n/a
1934 93 57 0.00 n/a
1933 n/a n/a n/a n/a
1932 n/a n/a n/a n/a
1931 n/a n/a n/a n/a
1930 n/a n/a n/a n/a
1929 n/a n/a n/a n/a
1928 n/a n/a n/a n/a
1927 n/a n/a n/a n/a
1926 n/a n/a n/a n/a
1925 n/a n/a n/a n/a
1924 n/a n/a n/a n/a
1923 n/a n/a n/a n/a
1922 n/a n/a n/a n/a
1921 n/a n/a n/a n/a
1920 n/a n/a n/a n/a
1919 n/a n/a n/a n/a
1918 n/a n/a n/a n/a
1917 n/a n/a n/a n/a
1916 n/a n/a n/a n/a
1915 n/a n/a n/a n/a
1914 n/a n/a n/a n/a
1913 n/a n/a n/a n/a
1912 n/a n/a n/a n/a
1911 n/a n/a n/a n/a
1910 n/a n/a n/a n/a
1909 n/a n/a n/a n/a
1908 n/a n/a n/a n/a
1907 n/a n/a n/a n/a
1906 n/a n/a n/a n/a
1905 n/a n/a n/a n/a
1904 n/a n/a n/a n/a
1903 n/a n/a n/a n/a
1902 n/a n/a n/a n/a
1901 n/a n/a n/a n/a
1900 n/a n/a n/a n/a
1899 82 58 0.00 n/a
1898 94 60 0.00 n/a
1897 110 62 0.00 n/a
1896 91 54 0.00 n/a
1895 86 61 0.00 n/a
1894 98 58 n/a n/a
What's the all-time high for Lewiston on 8/21?
For the date of Aug 21, the highest temperature ever reached in Lewiston history is 110 °F which happened in 1897.
Highest Temperatures in Lewiston on August 21
Rank Temperature Year
1 110 °F 1897
2 107 °F 1946
3 104 °F 2005
4 102 °F 1939
5 101 °F 1940
5 101 °F 2006
7 100 °F 2022
7 100 °F 1982
9 99 °F 1950
9 99 °F 1945
9 99 °F 2016
What's the all-time low for Lewiston on 8/21?
For the date of Aug 21, the lowest temperature ever reached in Lewiston history is 45 °F which happened in 1945.
Lowest Temperatures in Lewiston on August 21
Rank Temperature Year
1 45 °F 1945
2 47 °F 1960
3 48 °F 2000
3 48 °F 1980
3 48 °F 1955
6 49 °F 1944
6 49 °F 1985
6 49 °F 1996
9 50 °F 1987
9 50 °F 1952
9 50 °F 1935
9 50 °F 1988
Lowest High Temperatures in Lewiston on August 21
Rank Temperature Year
1 66 °F 2002
2 70 °F 2021
3 71 °F 1968
4 73 °F 1954
5 74 °F 2008
5 74 °F 1959
7 75 °F 1985
7 75 °F 1960
9 77 °F 1978
10 78 °F 1990
10 78 °F 2023
What's the most it has ever rained in Lewiston on 8/21?
For the date of Aug 21, the most precipitation ever recorded in Lewiston history is 0.18 inches which has happened 2 times, most recently in 2023.
All-Time Most Precipitation in Lewiston on August 21
Rank Precipitation Year
1 0.18 inches 2023
1 0.18 inches 1978
3 0.15 inches 1954
4 0.12 inches 1990
4 0.12 inches 2002
6 0.07 inches 1992
7 0.06 inches 1959
8 0.05 inches 2019
9 0.03 inches 2021
10 0.02 inches 1979
Weather Station Details
Years Station Coordinates
1948–2024 Lewiston Nez Perce County Airport location
1894–1947 Lewiston WTP location
Notes
1: Daily averages are a moving average which includes 14 days before and after the date.
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